glycogen
‘a carbohydrate that yields glucose by conversion’
Lexical development traced from the Tamil root:
E. glu-, glycogene < F. glycogène ‘sugar-producer’ < Greek-derived glyco- ‘sweet’+ -gen < F. -gene < Gk. -genes ‘born of, produced by’ < genos ‘birth,’ genea ‘race, family’ < jn < gene- < Tamil īṉ